#include "ehs/io/Directory_LNX.h"
#include "ehs/Log.h"

#include <dirent.h>
#include <cerrno>
#include <sys/stat.h>

namespace ehs
{
	Array<Str_8> Directory::GetAllFiles(const Str_8& dir)
	{
		Array<Str_8> result;

		if (!dir.Size())
		{
			EHS_LOG_INT(LogType::WARN, 2, "The given directory was empty.");
			return result;
		}

		DIR* hdl = opendir(dir);
		if (!hdl)
		{
			EHS_LOG_INT(LogType::ERR, 3, "Failed to open directory, \"" + dir + "\".");
			return result;
		}

		dirent* entry;
		while ((entry = readdir(hdl)))
			if (entry->d_type == DT_REG)
				result.Push(entry->d_name);

		if (closedir(hdl) == -1)
		{
			EHS_LOG_INT(LogType::ERR, 4, "Failed to close directory, \"" + dir + "\".");
			return result;
		}

		EHS_LOG_SUCCESS();

		return result;
	}

	void Directory::CreateRecursive(Str_8 dir)
	{
		dir = dir.ReplaceAll("\\", "/");

		const Vector<Str_8> dirs = dir.Split("/");

		for (UInt_64 i = 0; i < dirs.Size(); ++i)
		{
			const Str_8 final = (Str_8&&)dirs[i];
			for (UInt_64 x = 0; x < i; ++x)
				dirs[i] += dirs[x] + "/";

			dirs[i] += final;

			if (mkdir(dirs[i], S_IRWXU | S_IRWXG | S_IRWXO) == -1)
			{
				if (const SInt_32 code = errno; code != EEXIST)
				{
					EHS_LOG_INT(LogType::ERR, 1, "Failed to create directory, \"" + dirs[i] + "\" with error #" + Str_8::FromNum(code) + ".");
					return;
				}
			}
		}

		EHS_LOG_SUCCESS();
	}

	void Directory::Create(const Str_8 &dir)
	{
		if (mkdir(dir, S_IRWXU | S_IRWXG | S_IRWXO) == -1)
		{
			if (const SInt_32 code = errno; code != EEXIST)
			{
				EHS_LOG_INT(LogType::ERR, 1, "Failed to create directory with error #" + Str_8::FromNum(code) + ".");
				return;
			}
		}

		EHS_LOG_SUCCESS();
	}
}